@incollection{Lensing2013,
  author    = {Lensing, J{\"o}rg U.},
  title     = {Filmtongestaltung},
  series = {Filmton Guide : Jahrbuch der Berufsvereinigung Filmton e. V. (bvft) ; Filmton Guide 2013},
  publisher = {Berufsvereinigung Filmton},
  address   = {Berlin},
  pages     = {9},
  year      = {2013},
  language  = {de}
}
@incollection{Lensing2013,
  author    = {Lensing, J{\"o}rg U.},
  title     = {Ausbildung f{\"u}r Filmton in Deutschland},
  series = {Filmton Guide : Jahrbuch der Berufsvereinigung Filmton e. V. (bvft) ; Filmton Guide 2013},
  publisher = {Berufsvereinigung Filmton},
  address   = {Berlin},
  pages     = {4},
  year      = {2013},
  language  = {de}
}
@incollection{Lensing2013,
  author    = {Lensing, J{\"o}rg U.},
  title     = {Literatur zu Filmton},
  series = {Filmton Guide : Jahrbuch der Berufsvereinigung Filmton e. V. (bvft) ; Filmton Guide 2013},
  publisher = {Berufsvereinigung Filmton},
  address   = {Berlin},
  pages     = {2},
  year      = {2013},
  language  = {de}
}